Dual-polarized broad-band microstrip antennas fed by proximity coupling
Dual-polarized broad-band microstrip antennas fed by proximity coupling
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DOI：
10.1109/tap.2004.838763
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发表时间：
2005-01
影响因子：
5.7
通讯作者：
S. Gao;A. Sambell
中科院分区：
文献类型：
--
作者：
S. Gao;A. Sambell
本文提出了一种新型的宽带双极化微带贴片天线，采用邻近耦合馈电。微带线与开槽接地平面被用来在两个端口的贴片天线馈电。通过仅使用一个贴片，原型天线在输入端口1和2处分别产生22%和21.3%的带宽。两个输入端口之间的隔离度在整个带宽内低于-34 dB。观察到良好的宽边辐射方向图，并且在E和H平面处的交叉极化水平低于-21dB。由于其结构简单，很容易形成阵列，通过使用这种天线作为一个单元。
This work presents a novel broad-band dual-polarized microstrip patch antenna, which is fed by proximity coupling. The microstrip line with slotted ground plane is used at two ports to feed the patch antenna. By using only one patch, the prototype antenna yields a bandwidth of 22% and 21.3% at the input port 1 and 2, respectively. The isolation between two input ports is below -34 dB across the bandwidth. Good broadside radiation patterns are observed, and the cross-polar levels are below -21 dB at both E and H planes. Due to its simple structure, it is easy to form arrays by using this antenna as an element.